Deep-boring machine.



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T.. I T E P V.

DEEP BORING MACHINE.

APPLIATION FILED JULY 30, 1901.

7 SHEETS-SHEET l' H0 MODEL.

PATBNTBD JAN.A20, 1903.

. V. PETIT.

DEEP BORING MACHINE.

APPLICATION FILED JULY a0', 1901.

7 SHEETS-SHEET 2.

H0 MODEL.

No. 718,876. PATENTED .I AN. 20,l 1903.

V. PETIT.

DEEP BORING MACHINE. PPLIUATION FILED JULY 30, 1901.

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v No. 718,876. PATENIED JAN. 20. 1903.

` V. PETIT. DEEE BORING MACHINE.

APPLICATION FILED JULY 30, ci901.-

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Ilm-718.876. PATENTED JAN. 20, 1903.

' V. PETIT.

DEEP BORING: MACHINE.,

APPLICATION FILED JULY 30, 1901.

N0 MODEL. 7 SHEETS-SHEET 5.,

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No. 718,876. EATENTED JAN.20, 1903.

1V. PETIT.

DEEP BORING MACHINE.

l `APPLICATIDN FILED JULY 30, 1901. NO MODEL.. 7 SHEETS-SHEET 6.

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` .Am TMI. w m TG. m ENu PMF n ,VOM m BH M PA W EP. Y DP n w, l E/ E 56., w n oor. m L n w o.. M .,IWIIJ N m VICTOR PETIT, OF STRYJ,AUSTRIA-HUN GARY.

DEEPHBOWNG MACHINE.

SIPETFEGATION forming part of Letters Patent No. 718,876, dated January20, 1903.

Application tiled July 30, 1901. Serial No. 70,209. (No model.)

To @ZZ whom, it may concern:

Beit known that I, VICTOR PETIT, managing director, a subject of theKing of the Belgians, residing in Stryj, Galicia, Austria-Hu ngary, haveinvented improvements in Deep- Boring Machines; and l do hereby declarethe following to be a l'ull, clear, and exact description ofthe-invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to numerals of reference marked thereon,which form a part of this speciiication.

The object oi' this invention is to provide a deep-boring machine inwhich the drum from which the boring-rod is suspended by means of achain either only revolves for the purpose of lowering the boring-rodsinto the bore-hole or for drawing them up out of the same or onlyperforms an up-and-down motion (eccentric motion) to effect the smallmovements required by the punching-hammer.

Further, the improvements relate to a coupling for the driving-shaft toconnect it to the drum, so that the latter can either raise or lower thebore-rod or effect the striking and falling motion for the punchinghammer. Finally, the improvements relate to balancing the bore-rod.

These improvements are illustrated in the accompanying drawings, inwhich- Figure 1 is a front elevation of the boringmachine with itsstand. Fig. 2 is a side elevation of the same. Fig. 3 is a plan of themachine, to a larger scale, without the framework and bore-rod; and Fig.4, also to a larger scale, is a part section through the elements whichare mounted on the shaft. Fig. 5 is au end elevation of Fig. 4. Fig. Gisa section at A A in Fig. 3. Fig. 7 is a view of part of the deep-boringmachine with a modication of the arrangement for balancing the borerod.Fig. 8 is a side elevation of Fig. 7, partly in section. Fig. 9 is asection at B B in Fig.

7. Fig. 10 is a sectional view on the line C C in Fig. 4.

Ashaft 4 is mounted in the bearings 2 and 3, Fig. 3, of the cast-ironframe 1, on which the driving-wheel 5, Fig. 1, which may be a belt,chain, or wire-rope pulley, as desired, is keyed. Over part of the shaft4 a sleeve 6 is pushed, Fig. 4, one end of which is formed by acylindrical disk 7. The shaft-sleeve 6 is provided with two equaleccentric disks 8 9, Fig. 4, and its left end is made square. Twooppositely-set eccentric disks 10 11, which are connected together, areslid onto this square part, which, by means of the lever 13, mounted topivot in a projection of the frame and engaging in a groove 12, can betraversed on the shaft-sleeve 6. On the eccentric rings 11, 8, and 9 ismounted the drum 17, which is thickened up at its center, as at 16, Fig.4, and whose bore is also eccentric to correspond with the eccentricrings 11, 8, and 9, so that the cylinder-drum is concentric with theshaft 4. A double wheel is mounted loosely on the thickened part 16 ofthe drum, the left half of which forms a Worm-wheel18, While the righthalf is a chain-wheel 19. (See Figs. 1 and 8.) On both sides ofthedouble Wheel frames 2O and 21, which also loosely embrace the drum,are situated. In this latter is mounted the shaft of a double wheel 2223, similar to and above the double wheel 18 19 and preferably touchingor gearing with the latter. A worm 24, journaled in the two transverseties 25 26, connecting the frames 2O 21, is situated between these twowormwheels and is operated by the hand-wheel 27. This worm gears withboth the worm-wheels. The chain 28 is led between both thechainwheels,so thatitis firmly gripped by the latter, and runs over thesheave 29 at the top of the framing 30. (See Figs. 1 and 2.) These sideframes 2O 21 are provided with downwardlyprojecting arms 31, which bymeans of a cross-piece carry the draw-rod 32, which in its turn carriesthe counterweight 33, composed of separate plates put on the draw-rodand held between the two lock-nuts 34 35. The draw-rod 32 is preventedfrom swinging by means of the fixed guide-ring 36. The smooth part ofthe draw-rod is connected to the screwed part 37 by a nut 39, which isformed as a hand-Wheel 38. The parts mounted on the the thickened-uppart of the drum are kept in position by two flange-rings 40 and 41. Arope 42, the ends of which are secured to the drum, runs over therollers 43 and 44 at the head of the frame 30 and over a loose roller45. This rope serves to raise the rod out of or to lower it into thebore- ICO hole, for which purpose it is secured to the roller 45.

In order to enable the eccentric disk lO to be slid into the drum 17,the drum is bored out concentrically for a corresponding distance fromits left end. The square part at the left end of the shaft-sleeve 6 isseparated from the round part by a collar 47.

The coupling for the deep-boring machine is arranged as follows: Thedisk 48 is made in one piece with the drum 17 or connected rigidly tothe same. An arm 49 is keyed onto the driving-shaft 4, this vlatterbeing independent of the disk 48. A brake-band 50, of steel or the like,encircles the disk 48, which iu certain cases may be lined with wood.One end 51y of this band is secured to the arm 49 by means of the pin52, the other end 53 of the band being secured to a chain, rope 54, orthe like, which latteris led over a roller 55, mounted to turn on a pin56, iixed in the arm. The end of the chain 54 or the like is connectedto a lever 57, which pivots on a pin 58 in the arm 49.4 The lever 57 iscoupled to a collar 60 on the shaft 4 by means of a link 59. Abifurcated L-lever 6l is mounted to pivot in a supporting-bracket 62. Bypulling on a handle 63, provided on the lever 61, or by releasing thesame the collar 60 is traversed longitudinally on the shaft 4 andimparts its motion to the lever 57, which tightens or loosens the chain54, which in its turn causes the brake-band 50 to be tightened or thereverse around the disk 48.

The action of the coupling is as follows: The shaft 4 is driven by anysuitable means. The arm 49, keyed to this shaft, revolves with it. Ifnow tension be put on the brake-band 50 around the disk 48 by means ofthe lever 61, the disk 48 will be caused to revolve too through themedium of the collar 60, link 59, lever 57, and chain 54, and throughthe friction of the brake-band. The greater the resistance offered bythe disk 48 through the medium of the arm 49 against rotation the morethe brake-band 50 must be tightened. As soon as the tension in thebrake-band ceases the disk 48 is released from the shaft 4-that is tosay, the coupling is disengaged.

To reduce the wear of the disk caused by the brake-band, the disk 48 maybe jacketed with wood.

It is desirable to provide a support 64 for holding the bracket 62 ofthe lever 6l in position. This support is bolted to the frame of themachine. A collar 65, with set-screw, prevents the displacement of thebracket 62 on the shaft 4. A Hat spring 66, secured at the end of thearm 48, holds the brake-band in its off position and keeps it off theperiphery of the disk 48.

ln the position shown in Fig. 4 the drum 17 will only rise and fall whenthe shaft-sleeve and the eccentric disks 11, 8, and 9, which areconnected rigidly with it, revolve, and when the drum isprevented fromturning by some external influence-for example, the

tension of the rope 42. As soon, however, as the eccentric disk 10 isforced into the concentric bore 46 by means of the lever 13, Fig. 3, theup-and-down motion of the drunncan no longer take place, and the drumwill now revolve with the shaft-sleeve 6. It' the shaftsleeve is to betaken along, all that is necessary is to engage the coupling by pullingthe handle 63, as described above. When the drum 17 has been started torevolve, as described, the rope 42 will roll up on the drum, and theroller 45, together with the bore-rod, which it carries in this case, israised. By releasing the handle 63 the drum 17 is uncoupled from theshaft 4, so that in consequence of the Weight hanging from the sheave 45the rope 42 is unwound from-the drum, causing the latter to revolve andthe sheave 45 to sink, the bore-rod being lowered thereby. Forregulating the unwinding of the rope a suitable brake arrangement-e. g.,a brake-band around the disk 7-may be provided. The lowering of thebore-rod into the bore hole has to go on till it touches or rather tillthe punching-hammer touches the bottom, thus reducing the weight on thesheave 45 to such an extent that there is only enough tension left onthe rope to prevent the drum revolving and allowing the up-anddownmotion to commence. The bore-rod is now detached from the rope andsecured to the chain. By means of the hand-wheel 27, the double wheels18 22 19 23, and of the chain 28 the bore rod is then raised above theground and the lever 13 so set that the drum 17 is only raised andlowered and through the medium of the chain 28 imparts this upand-downmotion to the bore-rod and punching-hammer. When the punching-hammer hasworked away the bottom to such an eX- tent that it no longer strikes,the bore-rod is correspondingly lowered by means ot' the hand-wheel 27.The counterweight 33 can be adjusted for different Weights of bore-rodby adding or taking away some of the weightslabs, so that the powerrequired to raise the bore-rod is reduced to a minimum.

1When the bore-rod is to be withdrawn from the bore-hole, the drum 17may be released from the counterweights 33 by lowering them by means ofthe hand-wheel 38 until they rest on the rigidly-xed guide-ring 36.4toavoid unnecessary friction.

Figs. 7 to 9 illustrate a modification of the bore rod counterbalancingarrangement, which consists, substantially, of the employment of springsin place of the counterweights, the springs being situated inside adrum. Preferably these springs are arranged one above the other inseveral tiers. They act on a screw-spindle, which is suitably connectedto the driving-shaft of the deep-boring machine. At the same time thenormal tension of the springs may be adjusted by means of a nut on thescrew-spindle. By means of this yarrtngement part of the weight of theborerod is borne by the system of springs as the IOO bore-rod is loweredto lighten the Work of raising the bore-rod, so that the power fordriving the bore-machine is reduced to a minimum. Beneath the drum 17 acylindrical drum-head 67 is secured to the frame of the machine l and ispreferably provided with a movable bottom 68 and a fixed partition 69.Between this fixed partition and the movable bottom are strong spiralsprings 70, held in position by projections 7l on the bottom and on thepartition. A screw-spindle 72 passes through the drum-head 67, the topend of which is pivoted to the side brackets 74: by means of atransverse pin 73, the brackets being suspended from the drum 17 of theboring-machine. A nut 75 is provided on the screw-spindle 72 and is madein the form of a hand-wheel 76, the nut forming the support for thelower bottom, the travel of the nut being limited by means of two nuts77 78 for the purpose of adjusting the tension of the springs 70. Theobject of this arrangement is to store the work performed by the fallingbore-rod in the springs and to use the tension of the same in thesubsequentlifting ofthe bore-rod, and thus relieve the driving-motor.The action of the arrangement is as follows: Vhen the eccentrics havereached the lowest position of their stroke-t'. e., when the bore-rodhas been raised from the bottom of the boreshaft a distance equal to thetravel of these eccentrics-the tension of the springs is regulated tothe weight of the bore-rod by means of the hand-Wheel 76 and nuts 77 78.As the eccentrics now move upward, ilowering the bore-rod into thebore-shaft, the spiral springs are compressed by the pull caused bygravity, so that the work` thus stored may be employed for aiding thesubsequent upstroke of the bore-rod.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the sameis to be performed, I declare thatwhat I claim isl. In a well-boring machine, the combination of theboring-tool, a vibratory structure, means for vibrating said structure,a flexible device carrying said tool at one end, and an adjusting meansfor said tool carried by said structure, said device being engaged withsaid adjusting means, substantially as described.

2. In a well-boring machine, the combination of the boring-tool, avibratory structure, means for vibrating said structure, a iiexibledevice carrying said tool at one end, coacting rotary gripping membersengaging said dexible device and mounted in said structure, and meansfor rotating said members, substantially as described.

3. In a well-boring machine, the combination of the boring-tool, avibratory structure, means for vibrating said structure, a iiexibledevice carrying said tool at one end, coacting rotary gripping membersengaging said lexible device and mounted in said structure, worm-wheelsformed one with each gripping member, and a worm engaging saidWorm-wheels, substantially as described.

4. In a well-boring machine, the combination of a rotary part formedwith an eccentric portion, a sleeve receiving the eccentric portion ofsaid rotary part, a vibratory structure receiving and sustained by saidsleeve, a boring-tool, a flexible device carrying said tool at one end,and operative connecting means between said liexible device and thevibratory structure, substantially as described.

5. In a Well-boring machine, the combination of a rotary part formedwith an eccentric portion, a sleeve receiving the eccentric portion ofsaid rotary part, means for temporarily locking said sleeve and rotarypart together, a vibratory structure received and sustained by saidsleeve, a boring-tool, a flexible device carrying said tool at one end,and operative connecting means between said flexible device and thevibratory structure, substantially as described.

6. In a well-boring machine, the combination of a rotary part formedwith an eccentric portion, a sleeve receiving the eccentric portion ofsaid rotary part, means for temporarily locking said sleeve and rotarypart together, a vibratory structure received and sustained by saidsleeve, a boring-tool, a flexible device, operative connecting meansbetween said lexible device and the vibratory structure, andanotherflexible device secured to and adapted to wind on said sleeve,said iiexible devices being adapted to be interchangeably connected tothe boring-tool, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand this15th day of July, 1901.

VICTOR PETIT.

Witnesses:

ALBIN SCHILLER, ALvEsro S. HoGUE.

ICO

